LZMA-Alone Decompress
Decompress LZMA-Alone data from Hex or Base64 and output it as UTF-8 text, Hex, Base64, or another encoding. Read more
What is LZMA-Alone decompress?
LZMA-Alone is the legacy LZMA1 container with a 13-byte header. This tool decodes LZMA-Alone bytes supplied as Hex or Base64 and displays the restored byte stream as UTF-8, Hex, Base64, or another encoding. It does not interpret TAR entries and rejects XZ and LZIP input.
How to use this tool
Paste the complete LZMA-Alone value, select Hex or Base64 according to its textual representation, and choose how to display the restored bytes. Use UTF-8 only for valid text output. Use LZMA-Alone Compress for the reverse operation.
Choosing the right format
Input Encoding describes the compressed representation; Output Encoding describes the decompressed bytes. The 13-byte header carries decoder settings, so no compression level is selected during decompression.
Important limitations
An LZMA-Alone stream can require substantial decoder memory and can expand greatly. The format does not include a checksum for verifying the decompressed content. This browser tool buffers the complete compressed input before decoding.
Frequently asked questions
Why can another program not open the result?
Confirm the Hex or Base64 is complete LZMA-Alone data, not XZ or LZIP. Corrupt data and a decompressed TAR structure need different handling. Use LZMA-Alone Extract for .tar.lzma.
Are my files uploaded?
No. Decoding and decompression run locally in your browser.